<template>
    <checkbox-group v-model="options" style="width: 600px;"> 
        <checkbox label="复选框一" value="value1" style="font-size: 40px; background-color: aqua;"></checkbox>
        <checkbox label="复选框二" value="value2" style="font-size: 40px; background-color: aqua;"></checkbox>
    </checkbox-group>
</template>

<script>
    export default {
        data() {
            return {
                options: ["value1"]
            }
        },

        watch: {
            options: function (new_value, old_value) {
                console.log("v-model=options", new_value);
            }
        }   
    }
</script>